>In answer to my post about auto droping the calendar in the date time picker Paul M sent this code....
>
>#DEFINE WM_KEYDOWN 0x0100
>#DEFINE VK_F4 0x73
>
>hWnd = THISFORM.OleControl1.hWnd
>=SendMessage(hWnd, WM_KEYDOWN, VK_F4, 0)
>
>.... in main prg
>
>DECLARE INTEGER SendMessage IN WIN32API ;
> INTEGER hWnd, ;
> INTEGER Msg, ;
> INTEGER wParameter, ;
> INTEGER lParameter
>
>IT WORKS GREAT! The calendar pops up automaticaly just as I want.
>
>Except for one problem. Code that I had in the closeup event of the control now does not work at all.
>
>Do I need to reset or "unset" something? Thanks for any thoughts.

A keystroke is a combination of a WM_KEYDOWN, and a ....hmmmm.... WM_KEYUP message; Windows itself takes care of generating an intervening WM_CHAR message.

If the behavior is similar to a standard ComboBox control, it may be more advantagous to use the CB_SHOWDROPDOWN message to cause the dropdown without the keystroke

#DEFINE CB_SHOWDROPDOWN 0x14F

=SendMessage(hWnd,CB_SHOWDROPDOWN,1,0)  && display dropdown for ComboBox and derived types
=SendMessage(hWnd,CB_SHOWDROPDOWN,0,0)  && hide dropdown

(Helps to read the docs, but it takes a while...)

So many Windows messages, and so little time... < BEG >